/**
* @param array $earned
* @param array $spent
* @param Carbon $start
* @param Carbon $end
*
* @return array
*/
protected function singleYearInOut(array $earned, array $spent, Carbon $start, Carbon $end)
{
// per month? simply use each month.
$entries = new Collection();
while ($start < $end) {
// total income and total expenses:
$date = $start->format('Y-m');
$incomeSum = isset($earned[$date]) ? $earned[$date] : 0;
$expenseSum = isset($spent[$date]) ? $spent[$date] * -1 : 0;
$entries->push([clone $start, $incomeSum, $expenseSum]);
$start->addMonth();
}
$data = $this->generator->yearInOut($entries);
return $data;
}